meson: convert the speed tests

Use meson benchmark() for them, adjust mtest2make.py for that.
A new target "make bench" can be used to run all benchmarks.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200828110734.1638685-14-marcandre.lureau@redhat.com>
[Rewrite mtest2make part. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Makefile

@@ -64,7 +64,7 @@ ${ninja-targets-c_COMPILER} ${ninja-targets-cpp_COMPILER}: .var.command += -MP
 # reread (and MESON won't be empty anymore).
 ifneq ($(MESON),)
 Makefile.mtest: build.ninja scripts/mtest2make.py
-	$(MESON) introspect --tests | $(PYTHON) scripts/mtest2make.py > $@
+	$(MESON) introspect --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
 -include Makefile.mtest
 endif
 
@@ -283,6 +283,7 @@ help:
 	@echo  ''
 	@echo  'Test targets:'
 	$(call print-help,check,Run all tests (check-help for details))
+	$(call print-help,bench,Run all benchmarks)
 	$(call print-help,docker,Help about targets running tests inside containers)
 	$(call print-help,vm-help,Help about targets running tests inside VM)
 	@echo  ''

scripts/mtest2make.py

@@ -103,10 +103,17 @@ def emit_suite(name, suite, prefix):
     print('endif')
 
 testsuites = defaultdict(Suite)
-for test in introspect:
+for test in introspect['tests']:
     process_tests(test, testsuites)
 emit_prolog(testsuites, 'check')
 for name, suite in testsuites.items():
     emit_suite(name, suite, 'check')
 
+benchsuites = defaultdict(Suite)
+for test in introspect['benchmarks']:
+    process_tests(test, benchsuites)
+emit_prolog(benchsuites, 'bench')
+for name, suite in benchsuites.items():
+    emit_suite(name, suite, 'bench')
+
 print('run-tests: $(patsubst %, run-test-%, $(.tests))')

tests/Makefile.include

@@ -38,16 +38,8 @@ export SRC_PATH
 SYSEMU_TARGET_LIST := $(subst -softmmu.mak,,$(notdir \
    $(wildcard $(SRC_PATH)/default-configs/*-softmmu.mak)))
 
-check-speed-$(CONFIG_BLOCK) += tests/benchmark-crypto-hash$(EXESUF)
-check-speed-$(CONFIG_BLOCK) += tests/benchmark-crypto-hmac$(EXESUF)
-check-speed-$(CONFIG_BLOCK) += tests/benchmark-crypto-cipher$(EXESUF)
-
 QEMU_CFLAGS += -I$(SRC_PATH)/tests -I$(SRC_PATH)/tests/qtest
 
-tests/benchmark-crypto-hash$(EXESUF): tests/benchmark-crypto-hash.o $(test-crypto-obj-y)
-tests/benchmark-crypto-hmac$(EXESUF): tests/benchmark-crypto-hmac.o $(test-crypto-obj-y)
-tests/benchmark-crypto-cipher$(EXESUF): tests/benchmark-crypto-cipher.o $(test-crypto-obj-y)
-
 tests/migration/stress$(EXESUF): tests/migration/stress.o
 	$(call quiet-command, $(LINKPROG) -static -O3 $(PTHREAD_LIB) -o $@ $< ,"LINK","$(TARGET_DIR)$@")
 
@@ -97,9 +89,6 @@ define do_test_tap
 	  "TAP","$@")
 endef
 
-check-speed: $(check-speed-y)
-	$(call do_test_human, $^)
-
 # Per guest TCG tests
 
 BUILD_TCG_TARGET_RULES=$(patsubst %,build-tcg-tests-%, $(TARGET_DIRS))
@@ -212,6 +201,10 @@ check-clean:
 
 clean: check-clean
 
+# For backwards compatibility
+
+check-speed: bench-speed
+
 # Build the help program automatically
 
 -include $(wildcard tests/*.d)

tests/meson.build

@@ -111,6 +111,8 @@ test_deps = {
   'test-qht-par': qht_bench,
 }
 
+benchs = {}
+
 if have_block
   tests += {
     'test-coroutine': [testblock],
@@ -167,6 +169,11 @@ if have_block
   if 'CONFIG_NETTLE' in config_host or 'CONFIG_GCRYPT' in config_host
     tests += {'test-crypto-pbkdf': [io]}
   endif
+  benchs += {
+     'benchmark-crypto-hash': [crypto],
+     'benchmark-crypto-hmac': [crypto],
+     'benchmark-crypto-cipher': [crypto],
+  }
 endif
 
 if have_system
@@ -226,6 +233,14 @@ foreach test_name, extra: tests
        suite: ['unit'])
 endforeach
 
+foreach bench_name, deps: benchs
+  exe = executable(bench_name, bench_name + '.c',
+                   dependencies: [qemuutil] + deps)
+  benchmark(bench_name, exe,
+            args: ['--tap', '-k'],
+            protocol: 'tap',
+            suite: ['speed'])
+endforeach
 
 if have_tools and 'CONFIG_VHOST_USER' in config_host
   executable('vhost-user-bridge',